Earlier, the newbie asked why no one shot the zombie as it was attacking her, and the explanation went something like "its bodily fluids could have infected you." I get that St. George's body is impervious to bullets, bites, etc., but wouldn't he still be at risk of becoming infected after being covered in zombie gore? He wouldn't have any wounds, true, but he could accidentally swallow bits of zombie. And yet no one is worried.